Controlled O<sub>2</sub>reduction at a mixed-valent (II,I) Cu<sub>2</sub>S core
Jordan Mangue, Clément Gondre, Jacques Pécaut, Carole Duboc, Stéphane Ménage, Stéphane Torelli
Abstract
Inspection of Oxygen Reduction Reactions (ORRs) using a mixed-valent Cu2S complex as a pre-catalyst revealed a tuneable H2O2vs. H2O production under mild conditions by controlling the amount of sacrificial reducer. The fully reduced bisCuI state is the main active species in solution, with fast kinetics. This new catalytic system is robust for H2O2 production with several cycles achieved and opens up perspectives for integration into devices.
Topics & Concepts
SelectivityCopperReduction (mathematics)OxygenChemistryCatalysisOxygen reductionInorganic chemistryMaterials scienceCrystallographyPhysical chemistryMetallurgyGeometryMathematicsBiochemistryElectrochemistryOrganic chemistryElectrodeMetal-Catalyzed Oxygenation MechanismsElectrocatalysts for Energy ConversionOxidative Organic Chemistry Reactions